Calculation of Critical Vehicle Speeds Negotiating Through Curve

A great number of very severe traffic accidents occurs as thedirect result of destabilisation of the vehicle negotiating a curve,most often caused by excessive speed of the vehicle for the givencurve configuration, and for the given surface condition. Therefore,the issue of determing the speed in negotiating curve is notjust a problem met by experts involved in the analysis of the actualtraffic accidents, but also a question without which the preventivesafety measures in road traffic cannot be thought of,both regarding the construction and design of the roads, and regardingspeed limitations at certain points. The aim of this papersis to define a exactly analyticall method for case of actualvehicle negotiating a curve situation.